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Influences of temperature, power ultrasound and reaction time on the morphological properties of two new mercury(II) coordination supramolecular compounds

AuthorsHayati, Payam ; Reza Rezvani, Ali; Morsali, Ali; Retailleau, Pascal; García-Granda, Santiago
Sonochemical process
Coordination supramolecular
Ultrasound irradiation
Issue Date2017
CitationUltrasonics Sonochemistry 34: 968-977 (2017)
AbstractNanoparticles of two new coordination compounds, [Hg2(L)2(Br)4]n (1) and [Hg(L′)(SCN)2] (2), (L = 2-amino-4-methylpyridine, L′ = 2,6-pyridinedicarboxlic acid), have been synthesized by use of a sonochemical process and characterized by scanning electron microscopy (SEM), field emission scanning electron microscopy(FESEM), X-ray powder diffraction (XRPD), Fourier transform infrared spectroscopy (FTIR) spectroscopy and elemental analyses. The single crystal X-ray data of compounds 1 and 2 imply that the Hg(II) ions are four and five coordinated, respectively. Topological analysis shows that 1D and 0D coordination networks of 1 and 2 can be classified as underlying nets of topological types 2C1 and 1,3M4-1, respectively. The thermal stability of compounds has been studied by thermal gravimetric (TG) and differential thermal analyses (DTA). The role of temperature, reaction time and ultrasound irradiation power on the size and morphology of “nano-structures” 1 and 2, has been investigated. Results claim that an increase of temperature, sonication power and decrease in reaction time leads to a decrease of particle size.
Identifiersdoi: 10.1016/j.ultsonch.2016.07.019
issn: 1350-4177
e-issn: 1873-2828
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